The Event Horizon Focuser (EV) is a low-profile, friction-drive focuser designed for both the amateur and professional market.  The highly acclaimed Crayford design (see below) permits tolerances up to 100 times better than conventional rack-and-pinion focusers.  Zero image shift and zero backlash makes it fantastic for visual and photographic work and a  must for CCD imaging. 


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Product Image Price Item Name-

JMI EV-1 Telescope Focuser (Cassegrain with Motor) $480.00

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JMI EV-1 Telescope Focuser (Cassegrain with Motor)

JMI EV-1 Telescope Focuser (Cassegrain with Motor) The Event Horizon EV-1 is a 2" black-anodized aluminum focuser with rubber grip knobs and two-speed operation.  The focuser lifts up to 8 pounds.  Dual-speed manual controls are over 15 times...

JMI EV-1 Telescope Focuser (Refractor) $395.00

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JMI EV-1 Telescope Focuser (Refractor)

JMI EV-1 Telescope Focuser  (Refractor) The Event Horizon EV-1 is a 2" black-anodized aluminum focuser with rubber grip knobs and two-speed operation.  The focuser lifts up to 8 pounds.  Dual-speed manual controls are over 15 times finer (small...

JMI EV-1 Telescope Focuser (Refractor with motor) $546.00

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JMI EV-1 Telescope Focuser (Refractor with motor)

JMI EV-1 Telescope Focuser  (Refractor with motor) The Event Horizon EV-1 is a 2" black-anodized aluminum focuser with rubber grip knobs and two-speed operation.  The focuser lifts up to 8 pounds.  Dual-speed manual controls are over 15 times...


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